For the optional alarms† on your FreeStyle Libre 2 app*, you can change the alarm sound from "Custom" (an Abbott developed alarm sound intended to allow differentiation between alarms based on sound alone) to "Standard" (alarm sound set in your smartphone's Settings).
† Notifications will only be received when alarms are turned on and the sensor is within 20 feet unobstructed of the reading device. You must enable the appropriate settings on your smartphone to receive alarms and alerts, see the FreeStyle Libre 2 User’s Manual for more information.
* The FreeStyle Libre 2 app is only compatible with certain mobile devices and operating systems. Please check our compatibility guide for more information about device compatibility before using the app. Use of the FreeStyle Libre 2 app requires registration with LibreView.